Bone conduction hearing aid

Abstract

The utility model discloses a kind of bone conduction hearing aids, including first bone conduction loudspeaker, second bone conduction loudspeaker, first ear hook, second ear hook, first bin body, second bin body and rear hook;First bone conduction loudspeaker and second bone conduction loudspeaker all include shell, panel and transducer device, first ear hook and second ear hook are fixedly connected with shell respectively, panel and shell are surrounded to form a cavity, transducer device is located in cavity, and mechanical vibration generated by transducer device is transmitted out through panel;Panel includes first area and second area, the hardness of first area is greater than the hardness of second area, the utility model solves the problem that existing panel is difficult to simultaneously consider low frequency band and high frequency band mechanical vibration efficiency and wearing comfort degree, improves the performance of bone conduction hearing aid.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, specifically to a bone conduction hearing aid. Background Technology

[0002] Bone conduction hearing aids are devices that transmit sound to the cochlea through the skin, muscles, and bones of the human body, rather than through air conduction, thus producing the sensation of hearing. Because these tissues differ in hardness (e.g., skin and muscles are softer than bones), their attenuation or transmission efficiency for mechanical vibrations varies across different frequency bands. In existing bone conduction hearing aids, the bone conduction speaker is the key component for sound transmission, and the speaker's panel is the crucial part that contacts the skin and transmits vibrations; its transmission efficiency directly affects the sound quality and wearing comfort of the bone conduction speaker. Utility Model Content

[0003] This utility model provides a bone conduction hearing aid, including a first bone conduction speaker, a second bone conduction speaker, a first ear hook, a second ear hook, a first housing, a second housing, and a rear hook. Both the first and second bone conduction speakers include a housing, a panel, and a transducer. The first and second ear hooks are fixedly connected to the housing, and the panel and housing form a cavity. The transducer is located within the cavity and transmits the mechanical vibrations generated by the transducer through the panel. The panel includes a first region and a second region, with the first region having a higher hardness than the second region. When worn, both the first and second regions are in contact with the user's skin.

[0004] In some implementations: the area of ​​the first region is not less than the area of ​​the second region.

[0005] In some implementations: the first region is made of either PEEK or PPS, and the second region is made of either ABS, PC, or PET;

[0006] or,

[0007] The material of the first area is one of stainless steel, aluminum alloy or titanium alloy; the material of the second area is one of PEEK, PPS, ABS, PC or PET.

[0008] In some implementations, the second region continuously surrounds the periphery of the first region.

[0009] The first region is a circle with radius r1, and the second region is an annulus with radius R1, and the ratio between r1 and R1 is greater than or equal to 0.7 and less than 1.

[0010] In some implementations: the second region non-continuously surrounds the periphery of a portion of the first region, and two adjacent second regions are separated by the first region.

[0011] The first region includes a circular region and a strip region extending radially outward, and the second region is fan-shaped; the ratio between the strip region with width w and the circular region with radius r2 is less than or equal to 0.4.

[0012] In some implementations: there are multiple second regions, which are arranged in a ring-shaped array, and each second region is surrounded by a first region.

[0013] The first region is a circle with radius R3, and the second region is a circle with radius r3, where the ratio of r3 to R3 is less than or equal to 0.25.

[0014] In some embodiments: the thickness of the panel is between 2mm and 4mm; the panel has inner and outer sides, wherein...

[0015] On the outer surface of the panel, the second area is flush with the first area; on the inner surface of the panel, the second area is flush with the first area; or,

[0016] On the outer side of the panel, the second region is flush with the first region; on the inner side of the panel, the second region covers a portion of the first region, and the ratio of the area of ​​the covered region to the area of ​​the second region is not greater than 0.1.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, the panel of the bone conduction hearing aid is provided with a first region and a second region. The first region has a higher hardness than the second region. The different hardness of the regions can simultaneously take into account the transmission of mechanical vibrations in the low-frequency and high-frequency bands, which not only ensures the overall structural strength but also improves the vibration transmission efficiency. At the same time, the relatively lower hardness of the second region improves the wearing comfort, thereby improving the vibration transmission efficiency of the panel and the wearing experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bone conduction speaker structure of this utility model;

[0021] Figure 3 A schematic diagram showing the second region of the panel of this utility model continuously surrounding the first region;

[0022] Figure 4 A schematic diagram showing the non-continuous surrounding arrangement of the second region of the panel of this utility model;

[0023] Figure 5 A schematic diagram showing that the second region of the panel of this utility model is arranged in a ring shape with the first region configured;

[0024] In the picture:

[0025] 1. First bone conduction speaker; 2. Second bone conduction speaker;

[0026] 121. First area;

[0027] 1210. Circular area; 1211. Strip area;

[0028] 122. Second Region;

[0029] 3. First ear hook, 4. Second ear hook, 5. First chamber, 6. Second chamber, 7. Rear hook, 11. Outer shell, 12. Panel, 13. Transducer, 14. Cavity. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1, as Figures 1 to 3 The bone conduction hearing aid shown includes a first bone conduction speaker 1, a second bone conduction speaker 2, a first ear hook 3, a second ear hook 4, a first housing 5, a second housing 6, and a rear hook 7. Both the first bone conduction speaker 1 and the second bone conduction speaker 2 include a housing 11, a panel 12, and a transducer 13.

[0032] The first ear hook 3 and the second ear hook 4 are fixedly connected to the outer shell 11, the panel 12 covers the open end of the outer shell 11, and the panel 12 and the outer shell 11 form a closed cavity 14. The transducer 13 is located inside the cavity 14, and the transducer 13 is connected to the side wall of the panel 12 or the outer shell 11, or simultaneously to the side wall of the panel 12 and the outer shell 11; and transmits the mechanical vibration generated by the transducer 13 to the user through the panel 12.

[0033] The panel 12 also includes a first region 121 and a second region 122, with the first region 121 having a higher hardness than the second region 121. When worn, both the first region 121 and the second region 122 are in contact with the user's skin. The Shore D hardness of both the first region 121 and the second region 122 can be set to be no less than 80. These regions with different hardnesses can simultaneously accommodate the transmission of mechanical vibrations in both low and high frequency bands, ensuring overall structural strength and improving vibration transmission efficiency. Furthermore, the relatively lower hardness of the second region 122 enhances wearing comfort, thereby improving the vibration transmission efficiency and wearing experience of the panel 12.

[0034] The hardness of the second region 122 is no less than that of the outer shell 11, which avoids the problem that the second region 122 is easily damaged during use or when it is in contact with the outer shell 11 due to insufficient hardness, and improves the overall durability of the speaker.

[0035] The area of ​​the first region 121 may not be less than the area of ​​the second region 122; in the embodiment where the transducer 13 is fixed on the panel 12, there may be a gap between the transducer 13 and the side wall of the housing 11, and the area of ​​the harder region is relatively large, which can prevent the transducer 13 from shaking inside the housing 11.

[0036] When the bone conduction hearing aid is worn, the panel 12 is in contact with the user's skin, away from the outer surface of the transducer 13. This is along the vibration direction of the transducer 13 (e.g., along the direction of vibration of the transducer 13). Figure 2 Observing the middle panel (normal direction), the panel is round, oval, racetrack-shaped, etc., and different shapes are adapted to different wearing needs.

[0037] The first region 121 can be made of either PEEK or PPS, while the second region 122 can be made of either ABS, PC, or PET. Alternatively, the first region 121 can also be made of stainless steel, aluminum alloy, or titanium alloy, while the second region 122 can be made of either PEEK, PPS, ABS, PC, or PET. There are multiple material options for the first and second regions 122. Furthermore, glass fiber, carbon fiber, etc., can be added to the PEEK, PPS, ABS, PC, and PET materials to further adjust the hardness. By limiting the materials of the first and second regions 121, appropriate materials can be selected to adjust the hardness according to actual needs, increasing design flexibility.

[0038] To more clearly demonstrate the panel structure of this embodiment, the details are as follows:

[0039] The second region 122 of panel 12 continuously surrounds the outside of the first region 121, with the first region 121 embedded within the second region 122. For example, the first region 121 is a circle with radius r1, and the second region 122 is an annulus with radius R1, where the ratio of r1 to R1 is greater than or equal to 0.7 and less than 1. Of course, the first region 121 and the second region 122 can also be square, elliptical, etc.

[0040] In this embodiment, the distribution and size ratio of the first region 121 and the second region 122 have been optimized and the corresponding radius ratio has been adjusted to better adapt to different usage scenarios and wearing needs, thereby further improving vibration transmission efficiency and wearing comfort.

[0041] Example 2 is basically the same as Example 1, except that: Figure 4 As shown, panel 12 includes a first region 121 and a second region 122. The second region 122 discontinuously surrounds the periphery of a portion of the first region 121, and adjacent second regions 122 are separated by the first region 121. To more clearly illustrate the panel structure of this embodiment, the details are as follows:

[0042] The first region 121 further includes a circular region 1210 and multiple strip regions 1211; the second region 122 includes multiple fan-shaped regions, each connected to the outer edge of the circular region 1210; the second region 122 discontinuously surrounds the first region 121, and adjacent parts of the second region 122 are separated by the strip regions of the first region 121. Preferably, the second region 122 can be divided into four parts, separated by four strip regions of the first region 121, discontinuously surrounding the first region 121, and arranged in an array. For example, the ratio between the strip region 1211 with width w and the circular region 1210 with radius r2 is less than or equal to 0.4.

[0043] In this embodiment, the materials of the first region 121 and the second region 122 can be selected differently, and the hardness can be adjusted according to actual needs, increasing design flexibility. The various parts of the second region 122 do not continuously surround the first region 121, but are distributed in an array and their sizes can be adjusted accordingly; each region is fan-shaped. This allows for better adaptation to different usage scenarios and wearing requirements, further improving speaker performance.

[0044] Example 3 is basically the same as Example 1, except that: Figure 5 As shown, the panel 12 has multiple second regions 122, which are arranged in a ring-shaped array, and each second region 122 is surrounded by a first region 121.

[0045] For example, the first region 121 is a circle with radius R3, the second region 122 is a circle with radius r3, and the ratio between r3 and R3 is less than or equal to 0.25. Preferably, the ratio can be set to 0.2.

[0046] In this embodiment, the second region 122 is designed in a ring shape, and combined with the corresponding radius ratio, it can better adapt to specific usage scenarios and wearing requirements. This embodiment also possesses the beneficial effects mentioned in Embodiments 1 and 2, such as balancing vibration transmission efficiency and wearing experience, and improving overall durability.

[0047] Furthermore, the thickness of the panel in a bone conduction hearing aid can be set between 1mm and 5mm. To better ensure sufficient structural strength, vibration transmission performance, and comfort of the panel 12, a thickness between 2mm and 4mm is preferred for optimal results. If the panel 12 is too thin, its support will be weak, its strength insufficient, and the impact and deformation resistance of the panel material will decrease. Accidental impacts during daily wear can easily cause cracks or even breakage, requiring repair or replacement. If the panel 12 is too thick, excessively thick panels will weaken vibration transmission, affecting sound quality; excessively thick panels will also increase the weight of the device, affecting wearing stability.

[0048] The panel includes an inner side and an outer side. On the outer side of the panel 12, the second region 122 is flush with the first region 121; on the inner side of the panel 12, the second region 122 is flush with the first region 121; or...

[0049] On the outer surface of panel 12, the second region 122 is flush with the first region 121, or the second region 122 covers a portion of the first region 121, and the ratio of the area of ​​the covered area to the area of ​​the second region 122 is not greater than 0.1. Preferably, it can be set to 0.05. The arrangement of the second region 122 and the first region 121 on the inner and outer surfaces of panel 12 avoids discomfort or obstructed vibration transmission caused by uneven surfaces or excessive coverage.

[0050] Therefore, the reasonable thickness of the panel 12 and the area ratio of the first and second regions ensure that it has sufficient structural strength and vibration transmission performance, and also increase wearing comfort.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bone conduction hearing aid, comprising a first bone conduction speaker (1), a second bone conduction speaker (2), a first ear hook (3), a second ear hook (4), a first housing (5), a second housing (6), and a rear hook (7), characterized in that: The first bone conduction speaker (1) and the second bone conduction speaker (2) both include a shell (11), a panel (12) and a transducer (13). The first ear hook (3) and the second ear hook (4) are fixedly connected to the shell (11). The panel (12) and the shell (11) form a cavity (14). The transducer (13) is located in the cavity (14) and transmits the mechanical vibration generated by the transducer (13) through the panel (12). The panel (12) includes a first region (121) and a second region (122). The hardness of the first region (121) is greater than that of the second region (122). When worn, both the first region and the second region are in contact with the user's skin.

2. The bone conduction hearing aid according to claim 1, characterized in that: The area of ​​the first region (121) is not less than the area of ​​the second region (122).

3. A bone conduction hearing aid according to claim 1, characterized in that: The material of the first area (121) is PEEK or PPS, and the material of the second area (122) is one of ABS, PC or PET; or, The material of the first region (121) is stainless steel, aluminum alloy or titanium alloy, and the material of the second region (122) is PEEK, PPS, ABS, PC or PET.

4. A bone conduction hearing aid according to claim 2, characterized in that: The second region (122) continuously surrounds the periphery of the first region (121).

5. A bone conduction hearing aid according to claim 4, characterized in that: The first region (121) is a circle with radius r1, and the second region (122) is an annulus with radius R1, and the ratio between r1 and R1 is greater than or equal to 0.7 and less than 1.

6. A bone conduction hearing aid according to claim 2, characterized in that: The second region (122) is discontinuously surrounding the periphery of part of the first region (121), and two adjacent second regions (122) are separated by the first region (121).

7. A bone conduction hearing aid according to claim 6, characterized in that: The first region (121) includes a circular region (1210) and a strip region (1211) extending radially outward, and the second region (122) is fan-shaped; the ratio between the strip region (1211) with a width of w and the circular region (1210) with a radius of r2 is less than or equal to 0.

4.

8. A bone conduction hearing aid according to claim 2, characterized in that: There are multiple second regions (122), which are arranged in a ring-shaped array, and each second region (122) is surrounded by a first region (121).

9. A bone conduction hearing aid according to claim 8, characterized in that: The first region (121) is a circle with radius R3, and the second region (122) is a circle with radius r3, and the ratio between r3 and R3 is less than or equal to 0.

25.

10. A bone conduction hearing aid according to any one of claims 1-9, characterized in that: The thickness of panel (12) is between 2mm and 4mm; among which On the outer surface of panel (12), the second region (122) is flush with the first region (121); on the inner surface of panel (12), the second region (122) is flush with the first region (121); or, On the outer side of panel (12), the second region (122) is flush with the first region (121); on the inner side of panel (12), the second region (122) covers a part of the first region (121), and the ratio of the area of ​​the covered region to the area of ​​the second region (122) is not greater than 0.1.

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